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Autumnal (fall) equinox: September 22, 2014
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Author:  Hyack [ Sun Sep 21, 2014 2:27 am ]
Post subject:  Autumnal (fall) equinox: September 22, 2014

It's official......SUMMER IS OVER!!

As of 7:29pm PDT 22 September autumn will once again be with us.

September equinox

There are two equinoxes every year – in September and March – when the sun shines directly on the equator and the length of day and night is nearly equal.

Image
The Earth during the September equinox.

What happens during an equinox?

The September equinox occurs the moment the Sun crosses the celestial equator – the imaginary line in the sky above the Earth’s equator – from north to south. This happens either on September 22, 23, or 24 every year.

The Earth's axis is always tilted at an angle of about 23.5° in relation to the ecliptic, the imaginary plane created by the Earth's path around the Sun. However, the tilt's orientation changes throughout the year. On any other day of the year, the Earth's axis tilts a little away from or towards the Sun. But on the two equinoxes, the Earth's axis tilts neither away from nor towards the Sun and is perpendicular to the Sun's rays, like the illustration shows.

Why is it called equinox?

On the equinox, night and day are nearly exactly the same length – 12 hours – all over the world. This is the reason it's called an "equinox", derived from Latin, meaning "equal night". However, even if this is widely accepted, it isn't entirely true. In reality equinoxes don't have exactly 12 hours of daylight.

timeanddate.com

Author:  PluggyRug [ Sun Sep 21, 2014 8:10 am ]
Post subject:  Re: Autumnal (fall) equinox: September 22, 2014

The time of nature in balance and the time of Gwyl canol Hydref.

Author:  Hyack [ Mon Sep 22, 2014 9:54 pm ]
Post subject:  Re: Autumnal (fall) equinox: September 22, 2014

So, how's everyone enjoying our first touch of autumn? :)

Author:  wildrosegirl [ Tue Sep 23, 2014 6:42 am ]
Post subject:  Re: Autumnal (fall) equinox: September 22, 2014

Ours was absolutely beeeeeeeautiful!!! :D

I'm finally off of "house arrest", so it's one of my favourite times of year. :rock:

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